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Resistors 5mm Width 1Cr13Al4 FeCrAl Bright Flat Strip

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Resistors 5mm Width 1Cr13Al4 FeCrAl Bright Flat Strip

Brand Name : TANKII

Model Number : 1Cr13Al4

Certification : ISO9001: 2015

Place of Origin : Shanghai,China

MOQ : 20kg

Price : Negotiation

Payment Terms : L/C, T/T, Western Union, Paypal

Supply Ability : 100+TON+MONTH

Delivery Time : 15-30 DAYS

Packaging Details : Spool, carton, plywod case with plastic film as clients required

material : FeCrAl

surface : Bright, Smooth, Cleaning

density : 7.4g/cm3

elongation : >16%

hardness : 200-260

thickness : according to clients'requirement

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1Cr13Al4 FeCrAl alloy Bright Flat Strip/ Wide Strip for Resistors Use

Fecral Alloys and Nickel-chromium alloys have been chosen to be the resistive material for embedded resistor because nickel-chromium alloys possess high electrical resistivity that is widely used for thin film resistors [1, 2]. The sheet resistance of nickel-chrome alloy film containing 20% chromium can be as high as 2-3 kilo ohms and still maintain good stability. The temperature coefficient 1 of resistance (TCR) for bulk nickel-chrome alloy is about 110 ppm/°C. By alloying a small amount of silicon and aluminum with nickel-chromium, the temperature stability is further improved.

Application:

Resistors embedded in a printed wiring board will be an enabler for miniaturizing packages with higher reliability and improved electrical performance. Integrating the resistor functionality into the laminate substrate frees up the PWB surface area consumed by discrete components, enabling increased device functionality by the placement of more active components. Nickel-chromium alloys possess high electrical resistivity, which make them practical for use in a variety of applications. Nickel and chromium are alloyed with silicon and aluminum to improve temperature stability and lower the thermal coefficient of resistance. A thin film resistive layer based on nickel-chromium alloys has been deposited continuously onto rolls of copper foil to create a material for embedded resistor applications. The thin film resistive layer sandwiched between copper and laminate can be selectively etched to form discrete resistors. The chemicals for etching are common in PWB production processes. By controlling the thickness of the alloys, sheet resistance values from 25 to 250 ohm/sq. are obtained. This paper will compare two nickel-chromium materials in their etching methodologies, uniformity, power handling, thermal performance, adhesion and etching resolution.

Brand name 1Cr13Al4 0Cr25Al5 0Cr21Al6 0Cr23Al5 0Cr21Al4 0Cr21Al6Nb 0Cr27Al7Mo2
Main chemical composition% Cr 12.0-15.0 23.0-26.0 19.0-22.0 22.5-24.5 18.0-21.0 21.0-23.0 26.5-27.8
Al 4.0-6.0 4.5-6.5 5.0-7.0 4.2-5.0 3.0-4.2 5.0-7.0 6.0-7.0
RE opportune
amount
opportune
amount
opportune
amount
opportune
amount
opportune
amount
opportune
amount
opportune
amount
Fe Rest Rest Rest Rest Rest Rest Rest
Nb0.5 Mo1.8-2.2
Max.continuous
service temp.of
element (ºC)
950 1250 1250 1250 1100 1350 1400
Resistivity
μΩ.m,20ºC
1.25 1.42 1.42 1.35 1.23 1.45 1.53
Density
(g/cm3 )
7.4 7.10 7.16 7.25 7.35 7.10 7.10
Thermal
conductivity
KJ/m.h.ºC
52.7 46.1 63.2 60.2 46.9 46.1 45.2
Coefficient of
lines expansion
α×10-6/ºC
15.4 16.0 14.7 15.0 13.5 16.0 16.0
Melting pointºC 1450 1500 1500 1500 1500 1510 1520
Tensile strength
Mpa
580-680 630-780 630-780 630-780 600-700 650-800 680-830
Elongation at
rupture %
>16 >12 >12 >12 >12 >12 >10
Variation of
area %
65-75 60-75 65-75 65-75 65-75 65-75 65-75
Repeat bending
frequency(F/R)
>5 >5 >5 >5 >5 >5 >5
Hardness(H.B.) 200-260 200-260 200-260 200-260 200-260 200-260 200-260
Micrographic
structure
Ferrite Ferrite Ferrite Ferrite Ferrite Ferrite Ferrite
Magnetic
properties
Magnetic Magnetic Magnetic Magnetic Magnetic Magnetic Magnetic

Resistors 5mm Width 1Cr13Al4 FeCrAl Bright Flat StripResistors 5mm Width 1Cr13Al4 FeCrAl Bright Flat StripResistors 5mm Width 1Cr13Al4 FeCrAl Bright Flat Strip


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